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MX2021015521A - Image decoding method and device for deriving weight index information for generation of prediction sample. - Google Patents

Image decoding method and device for deriving weight index information for generation of prediction sample.

Info

Publication number
MX2021015521A
MX2021015521A MX2021015521A MX2021015521A MX2021015521A MX 2021015521 A MX2021015521 A MX 2021015521A MX 2021015521 A MX2021015521 A MX 2021015521A MX 2021015521 A MX2021015521 A MX 2021015521A MX 2021015521 A MX2021015521 A MX 2021015521A
Authority
MX
Mexico
Prior art keywords
index information
generation
weight index
decoding method
image decoding
Prior art date
Application number
MX2021015521A
Other languages
Spanish (es)
Inventor
Junghak Nam
Hyeongmoon Jang
Naeri Park
Original Assignee
Lg Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of MX2021015521A publication Critical patent/MX2021015521A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/527—Global motion vector estimation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/537—Motion estimation other than block-based
    • H04N19/54—Motion estimation other than block-based using feature points or meshes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)

Abstract

De conformidad con la descripción del presente documento, cuando el tipo de inter predicción de un bloque actual indica la bi-predicción, se puede derivar la información del índice de ponderación para los candidatos de una lista de candidatos a la combinación o de una lista de candidatos a la combinación de sub bloques, y por lo tanto se puede incrementar la eficiencia de la codificación.According to the description herein, when the interprediction type of a current block indicates bi-prediction, the weight index information for candidates may be derived from a list of combination candidates or from a list of combination candidates. candidates for sub-block combination, and thus the coding efficiency can be increased.

MX2021015521A 2019-06-14 2020-06-10 Image decoding method and device for deriving weight index information for generation of prediction sample. MX2021015521A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962861986P 2019-06-14 2019-06-14
PCT/KR2020/007521 WO2020251257A1 (en) 2019-06-14 2020-06-10 Image decoding method and device for deriving weight index information for generation of prediction sample

Publications (1)

Publication Number Publication Date
MX2021015521A true MX2021015521A (en) 2022-02-03

Family

ID=73782157

Family Applications (5)

Application Number Title Priority Date Filing Date
MX2021015521A MX2021015521A (en) 2019-06-14 2020-06-10 Image decoding method and device for deriving weight index information for generation of prediction sample.
MX2024015140A MX2024015140A (en) 2019-06-14 2021-12-13 Image decoding method and device for deriving weight index information for generation of prediction sample
MX2024015139A MX2024015139A (en) 2019-06-14 2021-12-13 Image decoding method and device for deriving weight index information for generation of prediction sample
MX2024015141A MX2024015141A (en) 2019-06-14 2021-12-13 Image decoding method and device for deriving weight index information for generation of prediction sample
MX2024015137A MX2024015137A (en) 2019-06-14 2021-12-13 Image decoding method and device for deriving weight index information for generation of prediction sample

Family Applications After (4)

Application Number Title Priority Date Filing Date
MX2024015140A MX2024015140A (en) 2019-06-14 2021-12-13 Image decoding method and device for deriving weight index information for generation of prediction sample
MX2024015139A MX2024015139A (en) 2019-06-14 2021-12-13 Image decoding method and device for deriving weight index information for generation of prediction sample
MX2024015141A MX2024015141A (en) 2019-06-14 2021-12-13 Image decoding method and device for deriving weight index information for generation of prediction sample
MX2024015137A MX2024015137A (en) 2019-06-14 2021-12-13 Image decoding method and device for deriving weight index information for generation of prediction sample

Country Status (9)

Country Link
US (4) US11445184B2 (en)
EP (1) EP3985980A4 (en)
JP (4) JP7249441B2 (en)
KR (2) KR20250076671A (en)
CN (1) CN114208171A (en)
AU (2) AU2020293843B2 (en)
CA (2) CA3240497A1 (en)
MX (5) MX2021015521A (en)
WO (1) WO2020251257A1 (en)

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CN114402610B (en) * 2019-09-13 2025-01-07 北京字节跳动网络技术有限公司 Weighted Sample Bidirectional Prediction in Video Coding and Decoding

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JP7432035B2 (en) 2024-02-15
US11843771B2 (en) 2023-12-12
JP2025019130A (en) 2025-02-06
MX2024015140A (en) 2025-01-09
EP3985980A1 (en) 2022-04-20
AU2020293843A1 (en) 2022-02-10
US20240064285A1 (en) 2024-02-22
JP2024036477A (en) 2024-03-15
JP2023063593A (en) 2023-05-09
EP3985980A4 (en) 2023-06-28
US20250142051A1 (en) 2025-05-01
MX2024015137A (en) 2025-01-09
CA3240497A1 (en) 2020-12-17
CA3143538A1 (en) 2020-12-17
MX2024015141A (en) 2025-01-09
US12289444B2 (en) 2025-04-29
MX2024015139A (en) 2025-01-09
US11445184B2 (en) 2022-09-13
KR102810852B1 (en) 2025-05-22
WO2020251257A1 (en) 2020-12-17
US20220103809A1 (en) 2022-03-31
US20220377320A1 (en) 2022-11-24
AU2024201124A1 (en) 2024-03-14
JP7249441B2 (en) 2023-03-30
JP2022536532A (en) 2022-08-17
BR112021025255A2 (en) 2022-03-15
KR20250076671A (en) 2025-05-29
KR20210153738A (en) 2021-12-17
CN114208171A (en) 2022-03-18
AU2020293843B2 (en) 2023-12-07
JP7592909B2 (en) 2024-12-02

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